855PC 3otec Tripple Sensor detector, with Isolator

The Tyco 855PC (516.855.054) is an advanced triple-sensor detector that combines optical smoke, heat, and carbon monoxide detection in a single device. By monitoring multiple fire indicators simultaneously, it delivers highly reliable fire detection while helping to minimize false alarms.

Part of the Generation 6 MX addressable fire detector range, the 855PC is suitable for a wide range of applications, including industrial facilities, retail environments, transport hubs, healthcare facilities, and hotel accommodation. In addition, its built-in line isolator enhances system resilience and helps maintain operation in the event of a loop fault.

Designed for flexibility, the detector communicates using the Zettler digital protocol and can be installed in both new and retrofit fire alarm systems.

Key Features

• Triple-sensor technology combining smoke, heat, and CO detection
• Built-in line isolator for enhanced loop protection
• Excellent false alarm rejection performance
• Suitable for industrial, commercial, healthcare, and hospitality applications
• Quick and easy installation and commissioning
• Fire, isolate, and fault LED status indications
• Extended drift compensation for long-term reliability
• Compatible with a wide range of bases and accessories
• Supports up to 250 devices per loop
• Uses the Zettler digital protocol for reliable communication